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Huang S, Dong W, Lin X, Bian J. Na+/K+-ATPase: ion pump, signal transducer, or cytoprotective protein, and novel biological functions. Neural Regen Res 2024; 19:2684-2697. [PMID: 38595287 PMCID: PMC11168508 DOI: 10.4103/nrr.nrr-d-23-01175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 10/23/2023] [Accepted: 12/09/2023] [Indexed: 04/11/2024] Open
Abstract
Na+/K+-ATPase is a transmembrane protein that has important roles in the maintenance of electrochemical gradients across cell membranes by transporting three Na+ out of and two K+ into cells. Additionally, Na+/K+-ATPase participates in Ca2+-signaling transduction and neurotransmitter release by coordinating the ion concentration gradient across the cell membrane. Na+/K+-ATPase works synergistically with multiple ion channels in the cell membrane to form a dynamic network of ion homeostatic regulation and affects cellular communication by regulating chemical signals and the ion balance among different types of cells. Therefore, it is not surprising that Na+/K+-ATPase dysfunction has emerged as a risk factor for a variety of neurological diseases. However, published studies have so far only elucidated the important roles of Na+/K+-ATPase dysfunction in disease development, and we are lacking detailed mechanisms to clarify how Na+/K+-ATPase affects cell function. Our recent studies revealed that membrane loss of Na+/K+-ATPase is a key mechanism in many neurological disorders, particularly stroke and Parkinson's disease. Stabilization of plasma membrane Na+/K+-ATPase with an antibody is a novel strategy to treat these diseases. For this reason, Na+/K+-ATPase acts not only as a simple ion pump but also as a sensor/regulator or cytoprotective protein, participating in signal transduction such as neuronal autophagy and apoptosis, and glial cell migration. Thus, the present review attempts to summarize the novel biological functions of Na+/K+-ATPase and Na+/K+-ATPase-related pathogenesis. The potential for novel strategies to treat Na+/K+-ATPase-related brain diseases will also be discussed.
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Affiliation(s)
- Songqiang Huang
- Department of Pharmacology, Joint Laboratory of Guangdong-Hong Kong Universities for Vascular Homeostasis and Diseases, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong Province, China
| | - Wanting Dong
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Xiaoqian Lin
- Department of Pharmacology, Joint Laboratory of Guangdong-Hong Kong Universities for Vascular Homeostasis and Diseases, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong Province, China
| | - Jinsong Bian
- Department of Pharmacology, Joint Laboratory of Guangdong-Hong Kong Universities for Vascular Homeostasis and Diseases, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong Province, China
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Zhang D, Wang Y, Zhou H, Han X, Hou L, Lv Z, Xue X. The study of an anoikis-related signature to predict glioma prognosis and immune infiltration. J Cancer Res Clin Oncol 2023; 149:12659-12676. [PMID: 37450027 DOI: 10.1007/s00432-023-05138-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Accepted: 07/05/2023] [Indexed: 07/18/2023]
Abstract
BACKGROUND Gliomas are the most common highly aggressive primary malignant brain tumors in adults with different biological behaviors and clinically heterogeneous features. About the extremely poor prognosis of gliomas, the search for potential therapeutic modalities and targets is crucial. METHOD We extracted the anoikis-related genes (ARG) from GeneCards and obtained differentially expressed genes in normal and glioma tissues from the GSE4290 dataset to obtain intersect differentially expressed ARG in gliomas by differential analysis. KEGG and GO analyses were used to evaluate the potential pathways and molecular processes of these genes. Based on The Cancer Genome Atlas (TCGA) training cohort, we performed the Least Absolute Shrinkage and Selection Operator (LASSO) regression and Cox regression to construct an ARG prognostic model and validated them in the TCGA testing cohort and the Chinese Glioma Genome Atlas (CGGA) validation cohort. Subsequently, we further explored the differences in clinical characteristics, tumor mutation burden (TMB), and the immune microenvironment in the high- and low-risk groups. Univariate and multifactorial regression analyses and nomogram construction were also performed. Moreover, we evaluated the expression levels of key genes via public databases, qPCR analysis and IHC staining, and further assessed the clinical prognostic value. RESULTS The regulatory model based on quantitative ARG prognostic models showed that patients in the high-risk group were associated with poorer survival prognosis, poorer clinical characteristics, and higher TMB levels. Moreover, the high-risk group had high levels of immune infiltration and upregulated immune checkpoint gene expression. The ARG prognostic model and the Nomogram showed good predictive performance. Expression and survival analysis of five prognostic ARG signatures (ETV4, HMOX1, MYC, NFE2L2, and UBE2C) showed that these genes have potential prognostic value. CONCLUSION Our constructed ARG prognostic risk model provides a potential therapeutic target and theoretical basis for predicting the prognosis of glioma patients and guiding individualized immunotherapy.
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Affiliation(s)
- Dongdong Zhang
- Department of Radiotherapy, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei Province, China
| | - Yu Wang
- Department of Radiotherapy, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei Province, China
| | - Huandi Zhou
- Department of Radiotherapy, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei Province, China
- Department of Central Laboratory, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei Province, China
| | - Xuetao Han
- Department of Radiotherapy, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei Province, China
| | - Liubing Hou
- Department of Radiotherapy, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei Province, China
- Department of Central Laboratory, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei Province, China
| | - Zhongqiang Lv
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei Province, China.
| | - Xiaoying Xue
- Department of Radiotherapy, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei Province, China.
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Pan B, Wang Y, Shi Y, Yang Q, Han B, Zhu X, Liu Y. Altered expression levels of miR-144-3p and ATP1B2 are associated with schizophrenia. World J Biol Psychiatry 2022; 23:666-676. [PMID: 34989308 DOI: 10.1080/15622975.2021.2022757] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Objectives: Schizophrenia is a devastating mental disease. Various microRNAs were proven to be associated with schizophrenia. Altered microRNA-144-3p (miR-144-3p) levels were found in various neurological and psychotic disorders. Beta2-subunit of Na(+)/K(+)-ATPase (ATP1B2) regulates neuronal migration and cell growth during brain development through the PI3K/Akt/mTOR pathway. The present study explored the associations of miR-144-3p and ATP1B2 with schizophrenia and their mutual interaction.Methods: A schizophrenic animal model employing repeated MK-801 administration was established and 293 T cells over-expressing miR-144-3p were constructed by lentivirus. The in vitro and in vivo levels of miR-144-3p, ATP1B2, and the PI3K/Akt/mTOR pathway were examined by qRT-PCR and Western Blots. The interaction between miR-144-3p and ATP1B2 was predicted and assessed by using bioinformatic methods and a luciferase reporter gene assay, respectively.Results: MiR-144-3p expression was elevated in the schizophrenic rat hippocampus. ATP1B2 was down-regulated in schizophrenic patients by analysing GEO datasets. Additionally, miR-144-3p can directly bind with ATP1B2. Furthermore, the ATP1B2 expression and PI3K/Akt/mTOR phosphorylation levels were down-regulated in the 293 T cells over-expressing miR-144-3p and schizophrenic rat hippocampus, which could be reversed by risperidone.Conclusions: This study revealed that up-regulated miR-144-3p might be associated with schizophrenia through down-regulating ATP1B2, implicating new targets of schizophrenia treatment.
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Affiliation(s)
- Bo Pan
- The Key Laboratory of Syndrome Differentiation and Treatment of Gastric Cancer of the State Administration of Traditional Chinese Medicine, Yangzhou University Medical College, Yangzhou, PR China.,Institute of Translational Medicine, Yangzhou University Medical College, Yangzhou, PR China
| | - Yuting Wang
- The Key Laboratory of Syndrome Differentiation and Treatment of Gastric Cancer of the State Administration of Traditional Chinese Medicine, Yangzhou University Medical College, Yangzhou, PR China.,Institute of Translational Medicine, Yangzhou University Medical College, Yangzhou, PR China
| | - Yiwen Shi
- Institute of Translational Medicine, Yangzhou University Medical College, Yangzhou, PR China
| | - Qianzhan Yang
- Shimadzu (China) Co., LTD. Chongqing Branch, Chongqing, PR China
| | - Bing Han
- The Key Laboratory of Syndrome Differentiation and Treatment of Gastric Cancer of the State Administration of Traditional Chinese Medicine, Yangzhou University Medical College, Yangzhou, PR China.,Institute of Translational Medicine, Yangzhou University Medical College, Yangzhou, PR China
| | - Xiaoli Zhu
- The Key Laboratory of Syndrome Differentiation and Treatment of Gastric Cancer of the State Administration of Traditional Chinese Medicine, Yangzhou University Medical College, Yangzhou, PR China.,Institute of Translational Medicine, Yangzhou University Medical College, Yangzhou, PR China
| | - Yanqing Liu
- The Key Laboratory of Syndrome Differentiation and Treatment of Gastric Cancer of the State Administration of Traditional Chinese Medicine, Yangzhou University Medical College, Yangzhou, PR China.,Institute of Translational Medicine, Yangzhou University Medical College, Yangzhou, PR China
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Pan B, Xu L, Weng J, Wang Y, Ji H, Han B, Zhu X, Liu Y. Effects of icariin on alleviating schizophrenia-like symptoms by regulating the miR-144-3p/ATP1B2/mTOR signalling pathway. Neurosci Lett 2022; 791:136918. [DOI: 10.1016/j.neulet.2022.136918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 10/06/2022] [Accepted: 10/12/2022] [Indexed: 11/25/2022]
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Tribe AK, McConnell MJ, Teesdale-Spittle PH. The Big Picture of Glioblastoma Malignancy: A Meta-Analysis of Glioblastoma Proteomics to Identify Altered Biological Pathways. ACS OMEGA 2021; 6:24535-24544. [PMID: 34604635 PMCID: PMC8482494 DOI: 10.1021/acsomega.1c02991] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Indexed: 05/08/2023]
Abstract
Glioblastoma is a highly malignant cancer with no effective treatment. It is vital to elucidate the mechanisms which drive glioblastoma in order to identify therapeutic targets. The differences in protein expression between glioblastoma, grade I-III glioma, and normal brain tissue reflect the functional alterations driving malignancy. However, proteomic analysis of glioblastoma has been hampered by the heterogeneity of glioblastoma and the variety of methodology used in its study. To reduce these inconsistencies, we performed a meta-analysis of the literature published since 2015, including 14 datasets from eight papers comparing the whole proteome of glioblastoma to normal brain or grade I-III glioma. We found that 154 proteins were commonly upregulated and 116 proteins were commonly downregulated in glioblastoma compared to normal brain. Meanwhile, 240 proteins were commonly upregulated and 125 proteins were commonly downregulated in glioblastoma compared to grade I-III glioma. Functional enrichment analysis revealed upregulation of proteins involved in mRNA splicing and the immune system and downregulation of proteins involved in synaptic signaling and glucose and glutamine metabolism. The identification of these altered biological pathways provides a basis for deeper investigation in the pursuit of an effective treatment for glioblastoma.
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Roy PK, Rajesh Y, Mandal M. Therapeutic targeting of membrane-associated proteins in central nervous system tumors. Exp Cell Res 2021; 406:112760. [PMID: 34339674 DOI: 10.1016/j.yexcr.2021.112760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/28/2021] [Accepted: 07/28/2021] [Indexed: 12/09/2022]
Abstract
The activity of the most complex system, the central nervous system (CNS) is profoundly regulated by a huge number of membrane-associated proteins (MAP). A minor change stimulates immense chemical changes and the elicited response is organized by MAP, which acts as a receptor of that chemical or channel enabling the flow of ions. Slight changes in the activity or expression of these MAPs lead to severe consequences such as cognitive disorders, memory loss, or cancer. CNS tumors are heterogeneous in nature and hard-to-treat due to random mutations in MAPs; like as overexpression of EGFRvIII/TGFβR/VEGFR, change in adhesion molecules α5β3 integrin/SEMA3A, imbalance in ion channel proteins, etc. Extensive research is under process for developing new therapeutic approaches using these proteins such as targeted cytotoxic radiotherapy, drug-delivery, and prodrug activation, blocking of receptors like GluA1, developing viral vector against cell surface receptor. The combinatorial approach of these strategies along with the conventional one might be more potential. Henceforth, our review focuses on in-depth analysis regarding MAPs aiming for a better understanding for developing an efficient therapeutic approach for targeting CNS tumors.
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Affiliation(s)
- Pritam Kumar Roy
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, India
| | - Yetirajam Rajesh
- Department of Human and Molecular Genetics, School of Medicine, Virginia Commonwealth University, Richmond, VA, USA
| | - Mahitosh Mandal
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, India.
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Themistocleous SC, Yiallouris A, Tsioutis C, Zaravinos A, Johnson EO, Patrikios I. Clinical significance of P-class pumps in cancer. Oncol Lett 2021; 22:658. [PMID: 34386080 PMCID: PMC8298992 DOI: 10.3892/ol.2021.12919] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 04/12/2021] [Indexed: 12/16/2022] Open
Abstract
P-class pumps are specific ion transporters involved in maintaining intracellular/extracellular ion homeostasis, gene transcription, and cell proliferation and migration in all eukaryotic cells. The present review aimed to evaluate the role of P-type pumps [Na+/K+ ATPase (NKA), H+/K+ ATPase (HKA) and Ca2+-ATPase] in cancer cells across three fronts, namely structure, function and genetic expression. It has been shown that administration of specific P-class pumps inhibitors can have different effects by: i) Altering pump function; ii) inhibiting cell proliferation; iii) inducing apoptosis; iv) modifying metabolic pathways; and v) induce sensitivity to chemotherapy and lead to antitumor effects. For example, the NKA β2 subunit can be downregulated by gemcitabine, resulting in increased apoptosis of cancer cells. The sarcoendoplasmic reticulum calcium ATPase can be inhibited by thapsigargin resulting in decreased prostate tumor volume, whereas the HKA α subunit can be affected by proton pump inhibitors in gastric cancer cell lines, inducing apoptosis. In conclusion, the present review highlighted the central role of P-class pumps and their possible use and role as anticancer cellular targets for novel therapeutic chemical agents.
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Affiliation(s)
- Sophia C Themistocleous
- Department of Medicine, School of Medicine, European University Cyprus, 2404 Nicosia, Cyprus
| | - Andreas Yiallouris
- Department of Medicine, School of Medicine, European University Cyprus, 2404 Nicosia, Cyprus
| | - Constantinos Tsioutis
- Department of Medicine, School of Medicine, European University Cyprus, 2404 Nicosia, Cyprus
| | - Apostolos Zaravinos
- Department of Life Sciences, School of Sciences, European University Cyprus, 2404 Nicosia, Cyprus.,College of Medicine, Member of Qatar University Health, Qatar University, 2713 Doha, Qatar
| | - Elizabeth O Johnson
- Department of Medicine, School of Medicine, European University Cyprus, 2404 Nicosia, Cyprus
| | - Ioannis Patrikios
- Department of Medicine, School of Medicine, European University Cyprus, 2404 Nicosia, Cyprus
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8
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Silva CID, Gonçalves-de-Albuquerque CF, Moraes BPTD, Garcia DG, Burth P. Na/K-ATPase: Their role in cell adhesion and migration in cancer. Biochimie 2021; 185:1-8. [PMID: 33713729 DOI: 10.1016/j.biochi.2021.03.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 03/03/2021] [Accepted: 03/04/2021] [Indexed: 12/18/2022]
Abstract
Na/K-ATPase (NKA) is a p-type transmembrane enzyme formed by three different subunits (α, β, and γ gamma). Primarily responsible for transporting sodium and potassium through the cell membrane, it also plays a critical role in intracellular signaling. The activation of diverse intracellular pathways may trigger cell death, survival, or even cell proliferation. Changes in the NKA functions or expression in isoforms subunits impact pathological conditions, such as cancer. The NKA function affects cell adhesion, motility, and migration, which are different in the physiological and pathological states. All enzyme subunits take part in the cell adhesion process, with the β subunit being the most studied. Thus, herein we aim to highlight NKA' central role in cell adhesion, motility, and migration in cancer cells.
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Affiliation(s)
- Camila Ignácio da Silva
- Laboratório de Enzimologia e Sinalização Celular, Departamento de Biologia Celular e Molecular, Instituto de Biologia, Universidade Federal Fluminense, Niterói, Brazil; Pós-Graduação em Ciências e Biotecnologia Universidade Federal Fluminense, Niterói, Brazil
| | - Cassiano Felippe Gonçalves-de-Albuquerque
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil; Laboratorio de Imunofarmacologia, Departamento de Bioquímica, Universidade Federal do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
| | - Bianca Portugal Tavares de Moraes
- Laboratorio de Imunofarmacologia, Departamento de Bioquímica, Universidade Federal do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Diogo Gomes Garcia
- Laboratório de Neurociências Translacional, Programa de Pós-Graduação em Neurologia, Universidade Federal do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Patrícia Burth
- Laboratório de Enzimologia e Sinalização Celular, Departamento de Biologia Celular e Molecular, Instituto de Biologia, Universidade Federal Fluminense, Niterói, Brazil; Pós-Graduação em Ciências e Biotecnologia Universidade Federal Fluminense, Niterói, Brazil.
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Dzikowski L, Mirzaei R, Sarkar S, Kumar M, Bose P, Bellail A, Hao C, Yong VW. Fibrinogen in the glioblastoma microenvironment contributes to the invasiveness of brain tumor-initiating cells. Brain Pathol 2021; 31:e12947. [PMID: 33694259 PMCID: PMC8412081 DOI: 10.1111/bpa.12947] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 01/20/2021] [Accepted: 02/16/2021] [Indexed: 12/17/2022] Open
Abstract
Glioblastomas (GBMs) are highly aggressive, recurrent, and lethal brain tumors that are maintained via brain tumor‐initiating cells (BTICs). The aggressiveness of BTICs may be dependent on the extracellular matrix (ECM) molecules that are highly enriched within the GBM microenvironment. Here, we investigated the expression of ECM molecules in GBM patients by mining the transcriptomic databases and also staining human GBM specimens. RNA levels for fibronectin, brevican, versican, heparan sulfate proteoglycan 2 (HSPG2), and several laminins were high in GBMs compared to normal brain, and this was corroborated by immunohistochemistry. While fibrinogen transcript was at normal level in GBM, its protein immunoreactivity was prominent within GBM tissues. These ECM molecules in tumor specimens were in proximity to, and surrounding BTICs. In culture, fibronectin and pan‐laminin induced the adhesion of BTICs onto the plastic substratum. However, fibrinogen increased the size of the BTIC spheres by facilitating the adhesive property, motility, and invasiveness of BTICs. These features of elevated invasiveness were corroborated in resected GBM specimens by the close proximity of fibrinogen with matrix metalloproteinase (MMP)‐2 and‐9, which are proteases implicated in metastasis. Moreover, the effect of fibrinogen‐induced invasiveness was attenuated in BTICs where MMP‐2 and ‐9 have been inhibited with siRNAs or pharmacological inhibitors. Our results implicate fibrinogen in GBM as a mediator of the invasive properties of BTICs, and as a target for therapy to reduce BTIC tumorigenecity.
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Affiliation(s)
- Lauren Dzikowski
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
| | - Reza Mirzaei
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
| | - Susobhan Sarkar
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
| | - Mehul Kumar
- Department of Biochemistry, University of Calgary, Calgary, AB, Canada.,Department of Oncology, University of Calgary, Calgary, AB, Canada
| | - Pinaki Bose
- Department of Biochemistry, University of Calgary, Calgary, AB, Canada.,Department of Oncology, University of Calgary, Calgary, AB, Canada.,Department of Molecular Biology, University of Calgary, Calgary, AB, Canada.,Department of Surgery, University of Calgary, Calgary, AB, Canada.,the Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB, Canada
| | - Anita Bellail
- Department of Pathology & Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Chunhai Hao
- Department of Pathology & Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
| | - V Wee Yong
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada.,Department of Oncology, University of Calgary, Calgary, AB, Canada.,Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
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Kong X, Wang JS, Yang H. Upregulation of lncRNA DARS-AS1 accelerates tumor malignancy in cervical cancer by activating cGMP-PKG pathway. J Biochem Mol Toxicol 2021; 35:1-11. [PMID: 33634536 DOI: 10.1002/jbt.22749] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 11/19/2020] [Accepted: 02/13/2021] [Indexed: 12/20/2022]
Abstract
This paper investigates the function of lncRNA DARS-AS1 in cervical cancer (CC) as well as its in-depth mechanism. The differential expression of DARS-AS1 and ATP1B2 were analyzed based on The Cancer Genome Atlas and the Genotype-Tissue Expression databases, and the survival rate was measured using Kaplan-Meier survival analysis. Biological function experiments were performed to detect cell proliferation, invasion, and migration. Quantitative real-time polymerase chain reaction was carried out to detect the expression of DARS-AS1 and ATP1B2. Western blot analysis was utilized to assess the protein levels of ATP1B2 and cGMP-PKG pathway-related proteins. DARS-AS1 was expressed at high levels in CC tissues and cell lines, and high expression of DARS-AS1 indicated a lower survival rate. CCK-8 and colony formation assays revealed that the overexpression of DARS-AS1 promoted the proliferation of CC cells. Furthermore, bioinformatics analysis suggested that the cGMP-PKG pathway ranks as the first pathway enriched by the differential genes that correlated with DARS-AS1 (|r| > 0.4). ATP1B2, as a cGMP-PKG pathway-related gene, was significantly correlated with the overall survival of CC patients. We further confirmed that ATP1B2 was lowly expressed in CC and negatively correlated with the DARS-AS1 expression. Then, biological function experiments exhibited that the promotion of cell proliferation, invasion, and migration resulted due to the upregulation of DARS-AS1 could be canceled by ATP1B2 overexpression. Finally, Western blot revealed that upregulation of DARS-AS1 could activate the cGMP-PKG pathway, while overexpression of ATP1B2 reversed this activation. Our study revealed that DARS-AS1/ATP1B2 contributes to regulating the progression of CC at least partially by modulating the cGMP-PKG pathway.
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Affiliation(s)
- Xia Kong
- Department of Oncology, Shanxian Central Hospital, Heze, China
| | - Ji-Shui Wang
- Department of Obstetrics, Jining Medical College Affiliated Hospital, Jining, China
| | - Hua Yang
- Department of Obstetrics, Hubei Province Gongan County Chinese Medicine Hospital, Gongan, China
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Barreto N, Caballero M, Bonfanti AP, de Mato FCP, Munhoz J, da Rocha-E-Silva TAA, Sutti R, Vitorino-Araujo JL, Verinaud L, Rapôso C. Spider venom components decrease glioblastoma cell migration and invasion through RhoA-ROCK and Na +/K +-ATPase β2: potential molecular entities to treat invasive brain cancer. Cancer Cell Int 2020; 20:576. [PMID: 33327966 PMCID: PMC7745393 DOI: 10.1186/s12935-020-01643-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 11/09/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Glioblastoma (GB) cells have the ability to migrate and infiltrate the normal parenchyma, leading to the formation of recurrent tumors often adjacent to the surgical extraction site. We recently showed that Phoneutria nigriventer spider venom (PnV) has anticancer effects mainly on the migration of human GB cell lines (NG97 and U-251). The present work aimed to investigate the effects of isolated components from the venom on migration, invasiveness, morphology and adhesion of GB cells, also evaluating RhoA-ROCK signaling and Na+/K+-ATPase β2 (AMOG) involvement. METHODS Human (NG97) GB cells were treated with twelve subfractions (SFs-obtained by HPLC from PnV). Migration and invasion were evaluated by scratch wound healing and transwell assays, respectively. Cell morphology and actin cytoskeleton were shown by GFAP and phalloidin labeling. The assay with fibronectin coated well plate was made to evaluate cell adhesion. Western blotting demonstrated ROCK and AMOG levels and a ROCK inhibitor was used to verify the involvement of this pathway. Values were analyzed by the GraphPad Prism software package and the level of significance was determinate using one-way analysis of variance (ANOVA) followed by Dunnett's multiple comparisons test. RESULTS Two (SF1 and SF11) of twelve SFs, decreased migration and invasion compared to untreated control cells. Both SFs also altered actin cytoskeleton, changed cell morphology and reduced adhesion. SF1 and SF11 increased ROCK expression and the inhibition of this protein abolished the effects of both subfractions on migration, morphology and adhesion (but not on invasion). SF11 also increased Na+/K+-ATPase β2. CONCLUSION All components of the venom were evaluated and two SFs were able to impair human glioblastoma cells. The RhoA effector, ROCK, was shown to be involved in the mechanisms of both PnV components. It is possible that AMOG mediates the effect of SF11 on the invasion. Further investigations to isolate and biochemically characterize the molecules are underway.
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Affiliation(s)
- Natália Barreto
- Faculdade de Ciências Farmacêuticas, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, 13083-865, Brazil.,Departamento de Biologia Estrutural e Funcional, Instituto de Biologia, UNICAMP, São Paulo, Brazil
| | - Marcus Caballero
- Faculdade de Ciências Farmacêuticas, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, 13083-865, Brazil.,Departamento de Biologia Estrutural e Funcional, Instituto de Biologia, UNICAMP, São Paulo, Brazil
| | - Amanda Pires Bonfanti
- Faculdade de Ciências Farmacêuticas, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, 13083-865, Brazil.,Departamento de Biologia Estrutural e Funcional, Instituto de Biologia, UNICAMP, São Paulo, Brazil
| | - Felipe Cezar Pinheiro de Mato
- Faculdade de Ciências Farmacêuticas, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, 13083-865, Brazil.,Departamento de Biologia Estrutural e Funcional, Instituto de Biologia, UNICAMP, São Paulo, Brazil
| | - Jaqueline Munhoz
- Faculdade de Ciências Farmacêuticas, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, 13083-865, Brazil.,Departamento de Biologia Estrutural e Funcional, Instituto de Biologia, UNICAMP, São Paulo, Brazil
| | | | - Rafael Sutti
- Faculdade de Ciências Médicas, Santa Casa de São Paulo, São Paulo, SP, Brazil
| | - João Luiz Vitorino-Araujo
- Disciplina de Neurocirurgia, Faculdade de Ciências Médicas da Santa Casa de São Paulo, São Paulo, SP, Brazil
| | - Liana Verinaud
- Departamento de Biologia Estrutural e Funcional, Instituto de Biologia, UNICAMP, São Paulo, Brazil
| | - Catarina Rapôso
- Faculdade de Ciências Farmacêuticas, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, 13083-865, Brazil.
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Takayasu T, Kurisu K, Esquenazi Y, Ballester LY. Ion Channels and Their Role in the Pathophysiology of Gliomas. Mol Cancer Ther 2020; 19:1959-1969. [PMID: 33008831 PMCID: PMC7577395 DOI: 10.1158/1535-7163.mct-19-0929] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 03/24/2020] [Accepted: 08/06/2020] [Indexed: 01/10/2023]
Abstract
Malignant gliomas are the most common primary central nervous system tumors and their prognosis is very poor. In recent years, ion channels have been demonstrated to play important roles in tumor pathophysiology such as regulation of gene expression, cell migration, and cell proliferation. In this review, we summarize the current knowledge on the role of ion channels on the development and progression of gliomas. Cell volume changes through the regulation of ion flux, accompanied by water flux, are essential for migration and invasion. Signaling pathways affected by ion channel activity play roles in cell survival and cell proliferation. Moreover, ion channels are involved in glioma-related seizures, sensitivity to chemotherapy, and tumor metabolism. Ion channels are potential targets for the treatment of these lethal tumors. Despite our increased understanding of the contributions of ion channels to glioma biology, this field remains poorly studied. This review summarizes the current literature on this important topic.
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Affiliation(s)
- Takeshi Takayasu
- Department of Pathology and Laboratory Medicine, The University of Texas Health Science Center at Houston, Houston, Texas
- Department of Neurosurgery, Institute of Biomedical and Health Sciences, Hiroshima University, Higashihiroshima, Hiroshima, Japan
| | - Kaoru Kurisu
- Department of Neurosurgery, Institute of Biomedical and Health Sciences, Hiroshima University, Higashihiroshima, Hiroshima, Japan
| | - Yoshua Esquenazi
- Vivian L. Smith Department of Neurosurgery, The University of Texas Health Science Center at Houston, Medical School, Houston, Texas.
- Memorial Hermann Hospital-TMC, Houston, Texas
| | - Leomar Y Ballester
- Department of Pathology and Laboratory Medicine, The University of Texas Health Science Center at Houston, Houston, Texas.
- Vivian L. Smith Department of Neurosurgery, The University of Texas Health Science Center at Houston, Medical School, Houston, Texas
- Memorial Hermann Hospital-TMC, Houston, Texas
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13
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Kernel Differential Subgraph Analysis to Reveal the Key Period Affecting Glioblastoma. Biomolecules 2020; 10:biom10020318. [PMID: 32079293 PMCID: PMC7072688 DOI: 10.3390/biom10020318] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 02/05/2020] [Accepted: 02/10/2020] [Indexed: 12/26/2022] Open
Abstract
Glioblastoma (GBM) is a fast-growing type of malignant primary brain tumor. To explore the mechanisms in GBM, complex biological networks are used to reveal crucial changes among different biological states, which reflect on the development of living organisms. It is critical to discover the kernel differential subgraph (KDS) that leads to drastic changes. However, identifying the KDS is similar to the Steiner Tree problem that is an NP-hard problem. In this paper, we developed a criterion to explore the KDS (CKDS), which considered the connectivity and scale of KDS, the topological difference of nodes and function relevance between genes in the KDS. The CKDS algorithm was applied to simulated datasets and three single-cell RNA sequencing (scRNA-seq) datasets including GBM, fetal human cortical neurons (FHCN) and neural differentiation. Then we performed the network topology and functional enrichment analyses on the extracted KDSs. Compared with the state-of-art methods, the CKDS algorithm outperformed on simulated datasets to discover the KDSs. In the GBM and FHCN, seventeen genes (one biomarker, nine regulatory genes, one driver genes, six therapeutic targets) and KEGG pathways in KDSs were strongly supported by literature mining that they were highly interrelated with GBM. Moreover, focused on GBM, there were fifteen genes (including ten regulatory genes, three driver genes, one biomarkers, one therapeutic target) and KEGG pathways found in the KDS of neural differentiation process from activated neural stem cells (aNSC) to neural progenitor cells (NPC), while few genes and no pathway were found in the period from NPC to astrocytes (Ast). These experiments indicated that the process from aNSC to NPC is a key differentiation period affecting the development of GBM. Therefore, the CKDS algorithm provides a unique perspective in identifying cell-type-specific genes and KDSs.
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Zeng F, Heng J, Guo X, Wang Y, Wu W, Tang L, Chen M, Wang S, Deng H, Wang J. The novel TP53 3'-end methylation pattern associated with its expression would be a potential biomarker for breast cancer detection. Breast Cancer Res Treat 2020; 180:237-245. [PMID: 31983017 DOI: 10.1007/s10549-020-05536-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 01/14/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Deficiency or silence of TP53 is an early event in breast tumorigenesis. Aberrant methylation and mutation in regulatory regions were considered as crucial regulators of gene expression. METHODS Using multiplex-PCR and next-generation sequencing technology, we analyzed TP53 mutation spectrum in its promoter region. Using PCR target sequence enrichment and next-generation bisulfite sequencing technology, we analyzed the methylation profile of the promoter and 3'-end regions of TP53 gene in paired breast tumor and normal tissues from 120 breast cancer patients. The expression of TP53 and the flanking gene ATP1B2 was explored with qPCR method in the same cohort. RESULTS No promoter mutation of TP53 gene was found in the cohort of the 120 breast cancer patients. The 3'-end of TP53 gene was hyper-methylated (average 78.71%) compared with the promoter region (average less than 1%) in breast tumor tissues. TP53 was significantly lower expressed (P = 1.68E-15) and hyper-methylated in 3'-end (P = 1.82E-18) in tumor. Negative cis correlation was found between the TP53 expression and its 3'-end methylation (P = 9.02E-8, R = 0.337). TP53 expression was significantly associated with PR status (P = 0.0128), Ki67 level (P = 0.0091), and breast cancer subtypes (P = 0.0109). TP53 3'-end methylation and expression showed a good performance in discriminating breast cancer and normal tissues with an AUC of 0.930. CONCLUSIONS The 3'-end methylation of TP53 might be a crucial regulator for its expression in breast cancer, suggesting that TP53 3'-end hyper-methylation associated with its lower expression could be a potential biomarker for breast cancer diagnosis.
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Affiliation(s)
- Feng Zeng
- Department of Emergency, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Jianfu Heng
- Hunan Cancer Hospital, Affiliated Cancer Hospital of Xiangya School of Medicine, Changsha, 410013, China
- School of Life Sciences, Central South University, Changsha, 410013, Hunan, China
| | - Xinwu Guo
- Sansure Biotech Inc., Changsha, 410205, Hunan, China
| | - Yue Wang
- School of Life Sciences, Central South University, Changsha, 410013, Hunan, China
| | - Wenhan Wu
- School of Life Sciences, Central South University, Changsha, 410013, Hunan, China
| | - Lili Tang
- Department of Breast Surgery, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Min Chen
- Sansure Biotech Inc., Changsha, 410205, Hunan, China
| | - Shouman Wang
- Department of Breast Surgery, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Hongyu Deng
- Hunan Cancer Hospital, Affiliated Cancer Hospital of Xiangya School of Medicine, Changsha, 410013, China
| | - Jun Wang
- School of Life Sciences, Central South University, Changsha, 410013, Hunan, China.
- Sansure Biotech Inc., Changsha, 410205, Hunan, China.
- Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
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15
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Jiang Q, Xie Q, Hu C, Yang Z, Huang P, Shen H, Schachner M, Zhao W. Glioma malignancy is linked to interdependent and inverse AMOG and L1 adhesion molecule expression. BMC Cancer 2019; 19:911. [PMID: 31510944 PMCID: PMC6739972 DOI: 10.1186/s12885-019-6091-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 08/26/2019] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Gliomas account for the majority of primary human brain tumors and remain a challenging neoplasm for cure due to limited therapeutic options. Cell adhesion molecules play pivotal roles in the growth and progression of glial tumors. Roles of the adhesion molecules on glia (AMOG) and L1CAM (L1) in glioma cells have been shown to correlate with tumorigenesis: Increased expression of L1 and decreased expression of AMOG correlate with degree of malignancy. METHODS We evaluated the interdependence in expression of these molecules by investigating the role of AMOG in vitro via modulation of L1 expression and analyzing apoptosis and cell senescence of glioma cells. RESULTS Immunohistochemical staining of normal human cortical and glioma tissue microarrays demonstrated that AMOG expression was lower in human gliomas compared to normal tissue and is inversely correlated with the degree of malignancy. Moreover, reduction of AMOG expression in human glioblastoma cells elevated L1 expression, which is accompanied by decreased cell apoptosis as well as senescence. CONCLUSION AMOG and L1 interdependently regulate their expression levels not only in U-87 MG cells but also in U251 and SHG44 human glioma cell lines. The capacity of AMOG to reduce L1 expression suggests that methods for increasing AMOG expression may provide a therapeutic choice for the management of glial tumors with high expression of L1.
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Affiliation(s)
- Qiong Jiang
- Center for Neuroscience, Shantou University Medical College, 22 Xin Ling Road, Shantou, Guangdong, 515041, People's Republic of China
| | - Qing Xie
- Center for Neuroscience, Shantou University Medical College, 22 Xin Ling Road, Shantou, Guangdong, 515041, People's Republic of China
| | - Chengliang Hu
- Center for Neuroscience, Shantou University Medical College, 22 Xin Ling Road, Shantou, Guangdong, 515041, People's Republic of China
| | - Zhai Yang
- Center for Neuroscience, Shantou University Medical College, 22 Xin Ling Road, Shantou, Guangdong, 515041, People's Republic of China
| | - Peizhi Huang
- Center for Neuroscience, Shantou University Medical College, 22 Xin Ling Road, Shantou, Guangdong, 515041, People's Republic of China
| | - Huifan Shen
- Center for Neuroscience, Shantou University Medical College, 22 Xin Ling Road, Shantou, Guangdong, 515041, People's Republic of China
| | - Melitta Schachner
- Center for Neuroscience, Shantou University Medical College, 22 Xin Ling Road, Shantou, Guangdong, 515041, People's Republic of China.
- Keck Center for Collaborative Neuroscience and Department of Cell Biology and Neuroscience, Rutgers University, 604 Allison Road, Piscataway, NJ, 08854, USA.
| | - Weijiang Zhao
- Center for Neuroscience, Shantou University Medical College, 22 Xin Ling Road, Shantou, Guangdong, 515041, People's Republic of China.
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Kuhns KJ, Lopez-Bertoni H, Coulter JB, Bressler JP. TET1 regulates DNA repair in human glial cells. Toxicol Appl Pharmacol 2019; 380:114646. [PMID: 31278917 DOI: 10.1016/j.taap.2019.114646] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 06/26/2019] [Accepted: 07/01/2019] [Indexed: 12/21/2022]
Abstract
Glioblastomas are the most aggressive of malignant brain cancers with a median patient survival of approximately 18 months. We recently demonstrated that Tet methylcytosine dioxygenase 1(TET1) is involved in cellular responses to ionizing radiation (IR) in glial-, glioblastoma-, and non-tumor-derived cells. This study used a lentiviral-mediated knockdown of TET1 to further dissect the contribution of TET1 to the DNA damage response in glial cell lines by evaluating its role in DNA repair. TET1-deficient glial cell lines displayed attenuated cytotoxicity compared to non-targeted knockdown after treatment with IR but these differences were not observed between control and TET1 deficient in response to inhibitors of Na+/K+-ATPase. Additionally, the percentage of glial cells displaying γH2A.x foci was greatly reduced in TET1-deficient glial cells compared to non-targeted knockdown conditions in response to IR and topoisomerase inhibitors. We also observed a lower percentage and a delay in 53BP1 foci formation, a marker of non-homologous end-joining, in response to IR and topoisomerase inhibitors in TET1-deficient glial cells. DNA-PK, another marker of non-homologous end-joining, was also lower in TET1-deficient glial cell lines. Interestingly, TET1-deficient glial cells displayed higher numbers of DNA strand breaks compared to control cells and repaired DNA breaks less efficiently in Comet assays. We suggest that attenuated DNA repair in TET1 deficient gliomas leads to genomic instability, which underlies poor patient survival.
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Affiliation(s)
- Katherine J Kuhns
- Environmental Health Sciences, The Johns Hopkins University Bloomberg School of Public Health, Johns Hopkins School of Medicine, 600 N. Wolfe Street, Baltimore, MD 21287, USA
| | - Hernando Lopez-Bertoni
- Department of Neurology, Hugo W. Moser Research Institute at Kennedy Krieger, 707 N. Broadway, Baltimore, MD 21205, USA; Department of Neurology, Johns Hopkins School of Medicine, 600 N. Wolfe Street, Baltimore, MD 21287, USA
| | - Jonathan B Coulter
- Department of Neurology, Hugo W. Moser Research Institute at Kennedy Krieger, 707 N. Broadway, Baltimore, MD 21205, USA; Environmental Health Sciences, The Johns Hopkins University Bloomberg School of Public Health, Johns Hopkins School of Medicine, 600 N. Wolfe Street, Baltimore, MD 21287, USA
| | - Joseph P Bressler
- Department of Neurology, Hugo W. Moser Research Institute at Kennedy Krieger, 707 N. Broadway, Baltimore, MD 21205, USA; Environmental Health Sciences, The Johns Hopkins University Bloomberg School of Public Health, Johns Hopkins School of Medicine, 600 N. Wolfe Street, Baltimore, MD 21287, USA.
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17
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Li S, Dai Z, Yang D, Li W, Dai H, Sun B, Liu X, Xie X, Xu R, Zhao X. Targeting β2 subunit of Na +/K +-ATPase induces glioblastoma cell apoptosis through elevation of intracellular Ca 2. Am J Cancer Res 2019; 9:1293-1308. [PMID: 31285960 PMCID: PMC6610052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 02/18/2019] [Indexed: 06/09/2023] Open
Abstract
Glioblastoma (GBM) is the most frequent brain cancer with poor prognosis and few therapies and urgently requires effective treatments. Na+/K+-ATPase is considered as a target for GBM therapy and development of anticancer drugs. Cardiac glycosides bind the Na+/K+-ATPase α subunit to inhibit enzymatic activity and are promising candidates for anticancer drug development including GBM. However, the comparatively higher doses required for effective anticancer actions cause severe cardiotoxicity. Selectively targeting the ATPase Na+/K+ transporting subunit beta 2 (ATP1B2) that is not expressed in the heart might avoid the cardiotoxicity. However, the effect of targeting ATP1B2 in GBM remains unknown. In this study, we found that high ATP1B2 expression is significantly associated with poor prognosis of patients with GBM. ATP1B2 silencing in GBM cells resulted in remarkably cell cycle arrest at the G2/M phase and apoptosis with concomitant increase in intracellular Ca2+ and activation of p38 kinase, similar to Na+/K+-ATPase inhibition by the classic cardiac glycoside digoxin. ATP1B2 is expressed higher in glioblastoma stem-like cells (GSCs) than in GBM cells and its downregulation induces apoptosis of GSCs. Furthermore, inducible ATP1B2 knockdown significantly inhibit tumor growth in vivo. Our data suggest ATP1B2 has potential as a therapeutic target for GBM.
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Affiliation(s)
- Shirong Li
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan ProvinceKunming 650223, Yunnan, China
- Kunming College of Life Science, University of Chinese Academy of SciencesKunming 650204, Yunnan, China
| | - Zhi Dai
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan ProvinceKunming 650223, Yunnan, China
| | - Dong Yang
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan ProvinceKunming 650223, Yunnan, China
| | - Wenxuan Li
- College of Life Sciences, Sichuan UniversityChengdu 610064, Sichuan, China
| | - Hongjuan Dai
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan ProvinceKunming 650223, Yunnan, China
| | - Bin Sun
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan ProvinceKunming 650223, Yunnan, China
| | - Xiuyun Liu
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan ProvinceKunming 650223, Yunnan, China
- Kunming College of Life Science, University of Chinese Academy of SciencesKunming 650204, Yunnan, China
| | - Xin Xie
- Stake Key Laboratory of Drug Research, The National Center for Drug Screening, Shanghai Institute of Materia Medica, Chinese Academy of SciencesShanghai 201203, China
| | - Rong Xu
- Department of Neurosurgery, Huashan Hospital, Fudan UniversityShanghai 200040, China
| | - Xudong Zhao
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan ProvinceKunming 650223, Yunnan, China
- CAS Center for Excellence in Animal Evolution and Genetics, Chinese Academy of SciencesKunming 650223, China
- Kunming Key Laboratory of Healthy Aging Molecular Mechanism StudyKunming 650223, Yunnan, China
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18
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Waugh DT. Fluoride Exposure Induces Inhibition of Sodium-and Potassium-Activated Adenosine Triphosphatase (Na +, K +-ATPase) Enzyme Activity: Molecular Mechanisms and Implications for Public Health. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:E1427. [PMID: 31010095 PMCID: PMC6518254 DOI: 10.3390/ijerph16081427] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 04/02/2019] [Accepted: 04/08/2019] [Indexed: 12/24/2022]
Abstract
In this study, several lines of evidence are provided to show that Na + , K + -ATPase activity exerts vital roles in normal brain development and function and that loss of enzyme activity is implicated in neurodevelopmental, neuropsychiatric and neurodegenerative disorders, as well as increased risk of cancer, metabolic, pulmonary and cardiovascular disease. Evidence is presented to show that fluoride (F) inhibits Na + , K + -ATPase activity by altering biological pathways through modifying the expression of genes and the activity of glycolytic enzymes, metalloenzymes, hormones, proteins, neuropeptides and cytokines, as well as biological interface interactions that rely on the bioavailability of chemical elements magnesium and manganese to modulate ATP and Na + , K + -ATPase enzyme activity. Taken together, the findings of this study provide unprecedented insights into the molecular mechanisms and biological pathways by which F inhibits Na + , K + -ATPase activity and contributes to the etiology and pathophysiology of diseases associated with impairment of this essential enzyme. Moreover, the findings of this study further suggest that there are windows of susceptibility over the life course where chronic F exposure in pregnancy and early infancy may impair Na + , K + -ATPase activity with both short- and long-term implications for disease and inequalities in health. These findings would warrant considerable attention and potential intervention, not to mention additional research on the potential effects of F intake in contributing to chronic disease.
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Affiliation(s)
- Declan Timothy Waugh
- EnviroManagement Services, 11 Riverview, Doherty's Rd, P72 YF10 Bandon, Co. Cork, Ireland.
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19
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Corbetta C, Di Ianni N, Bruzzone MG, Patanè M, Pollo B, Cantini G, Cominelli M, Zucca I, Pisati F, Poliani PL, Finocchiaro G, Pellegatta S. Altered function of the glutamate–aspartate transporter GLAST, a potential therapeutic target in glioblastoma. Int J Cancer 2019; 144:2539-2554. [DOI: 10.1002/ijc.31985] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 10/17/2018] [Accepted: 10/31/2018] [Indexed: 01/07/2023]
Affiliation(s)
- Cristina Corbetta
- Unit of Molecular Neuro‐OncologyFondazione IRCCS Istituto Neurologico Carlo Besta Milan Italy
| | - Natalia Di Ianni
- Unit of Molecular Neuro‐OncologyFondazione IRCCS Istituto Neurologico Carlo Besta Milan Italy
| | - Maria Grazia Bruzzone
- Experimental Imaging and Neuro‐RadiologyFondazione IRCCS Istituto Neurologico Carlo Besta Milan Italy
| | - Monica Patanè
- Unit of PathologyFondazione IRCCS Istituto Neurologico Carlo Besta Milan Italy
| | - Bianca Pollo
- Unit of PathologyFondazione IRCCS Istituto Neurologico Carlo Besta Milan Italy
| | - Gabriele Cantini
- Unit of Molecular Neuro‐OncologyFondazione IRCCS Istituto Neurologico Carlo Besta Milan Italy
| | | | - Ileana Zucca
- Experimental Imaging and Neuro‐RadiologyFondazione IRCCS Istituto Neurologico Carlo Besta Milan Italy
| | - Federica Pisati
- Unit of Molecular Neuro‐OncologyFondazione IRCCS Istituto Neurologico Carlo Besta Milan Italy
| | | | - Gaetano Finocchiaro
- Unit of Molecular Neuro‐OncologyFondazione IRCCS Istituto Neurologico Carlo Besta Milan Italy
| | - Serena Pellegatta
- Unit of Molecular Neuro‐OncologyFondazione IRCCS Istituto Neurologico Carlo Besta Milan Italy
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Xu J, Zhang Y, Guo X, Sun T. Glycogenolysis in Acquired Glioma Resistance to Temozolomide: A Role for the [Ca 2+] i-dependent Activation of Na,K-ATPase/ERK 1/2 Signaling. Front Pharmacol 2018; 9:873. [PMID: 30131700 PMCID: PMC6090282 DOI: 10.3389/fphar.2018.00873] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 07/19/2018] [Indexed: 01/25/2023] Open
Abstract
Understanding the mechanistic basis for temozolomide (TMZ)-induced glioma resistance is an important obstacle in developing an effective form of chemotherapy for this type of tumor. Glycogenolysis is known to play an essential role in cellular proliferation and potassium homeostasis and involves the glycogen phosphorylase isoenzyme BB (GPBB). In this investigation, plasma GPBB was correlated with TMZ-resistance. Elevated plasma GPBB concentrations were found to be more frequent in a TMZ-resistant cohort of patients with poor survival rates. TMZ inhibits cell proliferation and induces TMZ resistance by upregulating the expression of O(6)-methylguanine-DNA methyltransferase (MGMT). This process requires glycogenolysis, which was confirmed herein by treatment with 1,4-dideoxy-1,4-imino-D-arabinitol hydrochloride, a glycogenolysis inhibitor and a special GPBB inhibitor. Acute TMZ treatment leads to upregulation of [Ca2+]i, extracellular-regulated kinase (ERK)1/2 phosphorylation, and chronic TMZ treatment leads to upregulation of the expression of Na,K-ATPase, ERK1/2, and MGMT protein. Upregulation was abolished for each of these by inhibitors of transient receptor potential channel 1 and the inositol trisphosphate receptor. L-channel [Ca2+]i inhibitors and RyR antagonists had no such effect. These results demonstrate that [Ca2+]i-dependent glycogenolysis participates in acquired glioma TMZ-resistance by upregulating MGMT via a Na,K-ATPase/ERK1/2 signaling pathway. GPBB and glycogenolysis may therefore represent novel therapeutic targets for overcoming TMZ-resistant gliomas.
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Affiliation(s)
- Junnan Xu
- Department of Medical Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, China.,Department of Medical Oncology, Key Laboratory of Liaoning Breast Cancer Research, Shenyang, China
| | - Ye Zhang
- Department of Neurosurgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, China
| | - Xiangyu Guo
- Department of Medical Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, China
| | - Tao Sun
- Department of Medical Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, China
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21
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Rotoli D, Cejas MM, Maeso MDC, Pérez-Rodríguez ND, Morales M, Ávila J, Mobasheri A, Martín-Vasallo P. The Na, K-ATPase β-Subunit Isoforms Expression in Glioblastoma Multiforme: Moonlighting Roles. Int J Mol Sci 2017; 18:ijms18112369. [PMID: 29117147 PMCID: PMC5713338 DOI: 10.3390/ijms18112369] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 11/01/2017] [Accepted: 11/07/2017] [Indexed: 02/07/2023] Open
Abstract
Glioblastoma multiforme (GBM) is the most common form of malignant glioma. Recent studies point out that gliomas exploit ion channels and transporters, including Na, K-ATPase, to sustain their singular growth and invasion as they invade the brain parenchyma. Moreover, the different isoforms of the β-subunit of Na, K-ATPase have been implicated in regulating cellular dynamics, particularly during cancer progression. The aim of this study was to determine the Na, K-ATPase β subunit isoform subcellular expression patterns in all cell types responsible for microenvironment heterogeneity of GBM using immunohistochemical analysis. All three isoforms, β1, β2/AMOG (Adhesion Molecule On Glia) and β3, were found to be expressed in GBM samples. Generally, β1 isoform was not expressed by astrocytes, in both primary and secondary GBM, although other cell types (endothelial cells, pericytes, telocytes, macrophages) did express this isoform. β2/AMOG and β3 positive expression was observed in the cytoplasm, membrane and nuclear envelope of astrocytes and GFAP (Glial Fibrillary Acidic Protein) negative cells. Interestingly, differences in isoforms expression have been observed between primary and secondary GBM: in secondary GBM, β2 isoform expression in astrocytes was lower than that observed in primary GBM, while the expression of the β3 subunit was more intense. These changes in β subunit isoforms expression in GBM could be related to a different ionic handling, to a different relationship between astrocyte and neuron (β2/AMOG) and to changes in the moonlighting roles of Na, K-ATPase β subunits as adaptor proteins and transcription factors.
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Affiliation(s)
- Deborah Rotoli
- Laboratorio de Biología del Desarrollo, UD de Bioquímica y Biología Molecular and Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Universidad de La Laguna, La Laguna, Av. Astrofísico Sánchez s/n, 38206 La Laguna, Tenerife, Spain.
- CNR-National Research Council, Institute of Endocrinology and Experimental Oncology (IEOS), Via Sergio Pansini, 5-80131 Naples, Italy.
| | - Mariana-Mayela Cejas
- Laboratorio de Biología del Desarrollo, UD de Bioquímica y Biología Molecular and Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Universidad de La Laguna, La Laguna, Av. Astrofísico Sánchez s/n, 38206 La Laguna, Tenerife, Spain.
| | - María-Del-Carmen Maeso
- Service of Pathology, University Hospital Nuestra Señora de Candelaria, 38010 Santa Cruz de Tenerife, Canary Islands, Spain.
| | - Natalia-Dolores Pérez-Rodríguez
- Service of Medical Oncology, University Hospital Nuestra Señora de Candelaria, 38010 Santa Cruz de Tenerife, Canary Islands, Spain.
| | - Manuel Morales
- Service of Medical Oncology, University Hospital Nuestra Señora de Candelaria, 38010 Santa Cruz de Tenerife, Canary Islands, Spain.
- Medical Oncology, Hospiten® Hospitals, 38001 Santa Cruz de Tenerife, Tenerife, Spain.
| | - Julio Ávila
- Laboratorio de Biología del Desarrollo, UD de Bioquímica y Biología Molecular and Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Universidad de La Laguna, La Laguna, Av. Astrofísico Sánchez s/n, 38206 La Laguna, Tenerife, Spain.
| | - Ali Mobasheri
- Faculty of Health and Medical Sciences, University of Surrey, Guildford, Surrey GU2 7XH, UK.
| | - Pablo Martín-Vasallo
- Laboratorio de Biología del Desarrollo, UD de Bioquímica y Biología Molecular and Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Universidad de La Laguna, La Laguna, Av. Astrofísico Sánchez s/n, 38206 La Laguna, Tenerife, Spain.
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Kap EJ, Seibold P, Scherer D, Habermann N, Balavarca Y, Jansen L, Zucknick M, Becker N, Hoffmeister M, Ulrich A, Benner A, Ulrich CM, Burwinkel B, Brenner H, Chang-Claude J. SNPs in transporter and metabolizing genes as predictive markers for oxaliplatin treatment in colorectal cancer patients. Int J Cancer 2016; 138:2993-3001. [PMID: 26835885 DOI: 10.1002/ijc.30026] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Revised: 12/11/2015] [Accepted: 12/15/2015] [Indexed: 01/15/2023]
Abstract
Oxaliplatin is frequently used as part of a chemotherapeutic regimen with 5-fluorouracil in the treatment of colorectal cancer (CRC). The cellular availability of oxaliplatin is dependent on metabolic and transporter enzymes. Variants in genes encoding these enzymes may cause variation in response to oxaliplatin and could be potential predictive markers. Therefore, we used a two-step procedure to comprehensively investigate 1,444 single nucleotide polymorphisms (SNPs) from these pathways for their potential as predictive markers for oxaliplatin treatment, using 623 stage II-IV CRC patients (of whom 201 patients received oxaliplatin) from a German prospective patient cohort treated with adjuvant or palliative chemotherapy. First, all genes were screened using the global test that evaluated SNP*oxaliplatin interaction terms per gene. Second, one model was created by backward elimination on all SNP*oxaliplatin interactions of the selected genes. The statistical procedure was evaluated using bootstrap analyses. Nine genes differentially associated with overall survival according to oxaliplatin treatment (unadjusted p values < 0.05) were selected. Model selection resulted in the inclusion of 14 SNPs from eight genes (six transporter genes, ABCA9, ABCB11, ABCC10, ATP1A1, ATP1B2, ATP8B3, and two metabolism genes GSTM5, GRHPR), which significantly improved model fit. Using bootstrap analysis we show an improvement of the prediction error of 3.7% in patients treated with oxaliplatin. Several variants in genes involved in metabolism and transport could thus be potential predictive markers for oxaliplatin treatment in CRC patients. If confirmed, inclusion of these variants in a predictive test could identify patients who are more likely to benefit from treatment with oxaliplatin.
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Affiliation(s)
- Elisabeth J Kap
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Petra Seibold
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Dominique Scherer
- Division of Preventive Oncology, National Center for Tumor Diseases (NCT) and DKFZ, Heidelberg, Germany
| | - Nina Habermann
- Division of Preventive Oncology, National Center for Tumor Diseases (NCT) and DKFZ, Heidelberg, Germany
| | - Yesilda Balavarca
- Division of Preventive Oncology, National Center for Tumor Diseases (NCT) and DKFZ, Heidelberg, Germany
| | - Lina Jansen
- Division of Clinical Epidemiology and Aging Research, DKFZ, Heidelberg, Germany
| | - Manuela Zucknick
- Division of Biostatistics, DKFZ, Heidelberg, Germany.,Oslo Center for Biostatistics and Epidemiology, Department of Biostatistics, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | | | - Michael Hoffmeister
- Division of Clinical Epidemiology and Aging Research, DKFZ, Heidelberg, Germany
| | - Alexis Ulrich
- Department of General, Visceral and Transplantation Surgery, University Hospital Heidelberg, University of Heidelberg, Heidelberg, Germany
| | - Axel Benner
- Division of Biostatistics, DKFZ, Heidelberg, Germany
| | - Cornelia M Ulrich
- Division of Preventive Oncology, National Center for Tumor Diseases (NCT) and DKFZ, Heidelberg, Germany.,Huntsman Cancer Institute, University of Utah, Salt Lake City, UT
| | - Barbara Burwinkel
- Division of Molecular Epidemiology, DKFZ, Heidelberg, Germany.,Division of Molecular Biology of Breast Cancer, Department of Gynecology and Obstetrics, University of Heidelberg, Heidelberg, Germany
| | - Hermann Brenner
- Division of Clinical Epidemiology and Aging Research, DKFZ, Heidelberg, Germany.,German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Jenny Chang-Claude
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany.,University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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23
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Durlacher CT, Chow K, Chen XW, He ZX, Zhang X, Yang T, Zhou SF. Targeting Na⁺/K⁺ -translocating adenosine triphosphatase in cancer treatment. Clin Exp Pharmacol Physiol 2016; 42:427-43. [PMID: 25739707 DOI: 10.1111/1440-1681.12385] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Revised: 02/09/2015] [Accepted: 02/21/2015] [Indexed: 12/24/2022]
Abstract
The Na(+) /K(+) -translocating adenosine triphosphatase (ATPase) transports sodium and potassium across the plasma membrane and represents a potential target in cancer chemotherapy. Na(+) /K(+) -ATPase belongs to the P-type ATPase family (also known as E1-E2 ATPase), which is involved in transporting certain ions, metals, and lipids across the plasma membrane of mammalian cells. In humans, the Na(+) /K(+) -ATPase is a binary complex of an α-subunit that has four isoforms (α1 -α4 ) and a β-subunit that has three isoforms (β1 -β3 ). This review aims to update our knowledge on the role of Na(+) /K(+) -ATPase in cancer development and metastasis, as well as on how Na(+) /K(+) -ATPase inhibitors kill tumour cells. The Na(+) /K(+) -ATPase has been found to be associated with cancer initiation, growth, development, and metastasis. Cardiac glycosides have exhibited anticancer effects in cell-based and mouse studies via inhibition of the Na(+) /K(+) -ATPase and other mechanisms. Na(+) /K(+) -ATPase inhibitors may kill cancer cells via induction of apoptosis and autophagy, radical oxygen species production, and cell cycle arrest. They also modulate multiple signalling pathways that regulate cancer cell survival and death, which contributes to their antiproliferative activities in cancer cells. The clinical evidence supporting the use of Na(+) /K(+) -ATPase inhibitors as anticancer drugs is weak. Several phase I and phase II clinical trials with digoxin, Anvirzel, and huachansu (an intravenous formulated extract of the venom of the wild toad), either alone or more often in combination with other anticancer agents, have shown acceptable safety profiles but limited efficacy in cancer patients. Well-designed randomized clinical trials with reasonable sample sizes are certainly warranted to confirm the efficacy and safety of cardiac glycosides for the treatment of cancer.
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Affiliation(s)
- Cameron T Durlacher
- Department of Pharmaceutical Science, College of Pharmacy, University of South Florida, Tampa, FL, USA
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24
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Xu J, Margol AS, Shukla A, Ren X, Finlay JL, Krieger MD, Gilles FH, Couch FJ, Aziz M, Fung ET, Asgharzadeh S, Barrett MT, Erdreich-Epstein A. Disseminated Medulloblastoma in a Child with Germline BRCA2 6174delT Mutation and without Fanconi Anemia. Front Oncol 2015; 5:191. [PMID: 26380221 PMCID: PMC4550790 DOI: 10.3389/fonc.2015.00191] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Accepted: 08/10/2015] [Indexed: 01/01/2023] Open
Abstract
Medulloblastoma, the most common malignant brain tumor in children, occurs with increased frequency in individuals with Fanconi anemia who have biallelic germline mutations in BRCA2. We describe an 8-year-old child who had disseminated anaplastic medulloblastoma and a deleterious heterozygous BRCA2 6174delT germline mutation. Molecular profiling was consistent with Group 4 medulloblastoma. The posterior fossa mass was resected and the patient received intensive chemotherapy and craniospinal irradiation. Despite this, the patient succumbed to a second recurrence of his medulloblastoma, which presented 8 months after diagnosis as malignant pleural and peritoneal effusions. Continuous medulloblastoma cell lines were isolated from the original tumor (CHLA-01-MED) and the malignant pleural effusion (CHLA-01R-MED). Here, we provide their analyses, including in vitro and in vivo growth, drug sensitivity, comparative genomic hybridization, and next generation sequencing analysis. In addition to the BRCA2 6174delT, the medulloblastoma cells had amplification of MYC, deletion at Xp11.2, and isochromosome 17, but no structural variations or overexpression of GFI1 or GFI1B. To our knowledge, this is the first pair of diagnosis/recurrence medulloblastoma cell lines, the only medulloblastoma cell lines with BRCA2 6174delT described to date, and the first reported case of a child with medulloblastoma associated with a germline BRCA2 6174delT who did not also have Fanconi anemia.
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Affiliation(s)
- Jingying Xu
- Division of Hematology-Oncology, Department of Pediatrics, Children's Hospital Los Angeles , Los Angeles, CA , USA
| | - Ashley Sloane Margol
- Division of Hematology-Oncology, Department of Pediatrics, Children's Hospital Los Angeles , Los Angeles, CA , USA ; Department of Pediatrics, Keck School of Medicine, University of Southern California , Los Angeles, CA , USA
| | | | - Xiuhai Ren
- Division of Hematology-Oncology, Department of Pediatrics, Children's Hospital Los Angeles , Los Angeles, CA , USA
| | - Jonathan L Finlay
- Division of Hematology-Oncology, Department of Pediatrics, Children's Hospital Los Angeles , Los Angeles, CA , USA ; Department of Pediatrics, Keck School of Medicine, University of Southern California , Los Angeles, CA , USA
| | - Mark D Krieger
- Division of Neurosurgery, Children's Hospital Los Angeles , Los Angeles, CA , USA ; Department of Neurological Surgery, Keck School of Medicine, University of Southern California , Los Angeles, CA , USA
| | - Floyd H Gilles
- Department of Pathology, Children's Hospital Los Angeles and Keck School of Medicine, University of Southern California , Los Angeles, CA , USA
| | - Fergus J Couch
- Department of Laboratory Medicine and Pathology, Mayo Clinic , Rochester, MN , USA
| | - Meraj Aziz
- Translational Genomics Research Institute (TGen) , Phoenix, AZ , USA
| | | | - Shahab Asgharzadeh
- Division of Hematology-Oncology, Department of Pediatrics, Children's Hospital Los Angeles , Los Angeles, CA , USA ; Department of Pediatrics, Keck School of Medicine, University of Southern California , Los Angeles, CA , USA ; Department of Pathology, Children's Hospital Los Angeles and Keck School of Medicine, University of Southern California , Los Angeles, CA , USA
| | - Michael T Barrett
- Translational Genomics Research Institute (TGen) , Phoenix, AZ , USA
| | - Anat Erdreich-Epstein
- Division of Hematology-Oncology, Department of Pediatrics, Children's Hospital Los Angeles , Los Angeles, CA , USA ; Department of Pediatrics, Keck School of Medicine, University of Southern California , Los Angeles, CA , USA ; Department of Pathology, Children's Hospital Los Angeles and Keck School of Medicine, University of Southern California , Los Angeles, CA , USA
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25
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Lee SJ, Litan A, Li Z, Graves B, Lindsey S, Barwe SP, Langhans SA. Na,K-ATPase β1-subunit is a target of sonic hedgehog signaling and enhances medulloblastoma tumorigenicity. Mol Cancer 2015; 14:159. [PMID: 26286140 PMCID: PMC4544806 DOI: 10.1186/s12943-015-0430-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Accepted: 08/11/2015] [Indexed: 02/06/2023] Open
Abstract
Background The Sonic hedgehog (Shh) signaling pathway plays an important role in cerebellar development, and mutations leading to hyperactive Shh signaling have been associated with certain forms of medulloblastoma, a common form of pediatric brain cancer. While the fundamentals of this pathway are known, the molecular targets contributing to Shh-mediated proliferation and transformation are still poorly understood. Na,K-ATPase is a ubiquitous enzyme that maintains intracellular ion homeostasis and functions as a signaling scaffold and a cell adhesion molecule. Changes in Na,K-ATPase function and subunit expression have been reported in several cancers and loss of the β1-subunit has been associated with a poorly differentiated phenotype in carcinoma but its role in medulloblastoma progression is not known. Methods Human medulloblastoma cell lines and primary cultures of cerebellar granule cell precursors (CGP) were used to determine whether Shh regulates Na,K-ATPase expression. Smo/Smo medulloblastoma were used to assess the Na,K-ATPase levels in vivo. Na,K-ATPase β1-subunit was knocked down in DAOY cells to test its role in medulloblastoma cell proliferation and tumorigenicity. Results Na,K-ATPase β1-subunit levels increased with differentiation in normal CGP cells. Activation of Shh signaling resulted in reduced β1-subunit mRNA and protein levels and was mimicked by overexpression of Gli1and Bmi1, both members of the Shh signaling cascade; overexpression of Bmi1 reduced β1-subunit promoter activity. In human medulloblastoma cells, low β1-subunit levels were associated with increased cell proliferation and in vivo tumorigenesis. Conclusions Na,K-ATPase β1-subunit is a target of the Shh signaling pathway and loss of β1-subunit expression may contribute to tumor development and progression not only in carcinoma but also in medulloblastoma, a tumor of neuronal origin.
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Affiliation(s)
- Seung Joon Lee
- Nemours/Alfred I. duPont Hospital for Children, Rockland Center I, 1701 Rockland Road, Wilmington, DE, 19803, USA
| | - Alisa Litan
- Nemours/Alfred I. duPont Hospital for Children, Rockland Center I, 1701 Rockland Road, Wilmington, DE, 19803, USA
| | - Zhiqin Li
- Nemours/Alfred I. duPont Hospital for Children, Rockland Center I, 1701 Rockland Road, Wilmington, DE, 19803, USA
| | - Bruce Graves
- Nemours/Alfred I. duPont Hospital for Children, Rockland Center I, 1701 Rockland Road, Wilmington, DE, 19803, USA
| | - Stephan Lindsey
- Nemours/Alfred I. duPont Hospital for Children, Rockland Center I, 1701 Rockland Road, Wilmington, DE, 19803, USA
| | - Sonali P Barwe
- Nemours/Alfred I. duPont Hospital for Children, Rockland Center I, 1701 Rockland Road, Wilmington, DE, 19803, USA
| | - Sigrid A Langhans
- Nemours/Alfred I. duPont Hospital for Children, Rockland Center I, 1701 Rockland Road, Wilmington, DE, 19803, USA.
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26
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Chigaev A. Does aberrant membrane transport contribute to poor outcome in adult acute myeloid leukemia? Front Pharmacol 2015; 6:134. [PMID: 26191006 PMCID: PMC4489100 DOI: 10.3389/fphar.2015.00134] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Accepted: 06/15/2015] [Indexed: 12/31/2022] Open
Abstract
Acute myeloid leukemia in adults is a highly heterogeneous disease. Gene expression profiling performed using unsupervised algorithms can be used to distinguish specific groups of patients within a large patient cohort. The identified gene expression signatures can offer insights into underlying physiological mechanisms of disease pathogenesis. Here, the analysis of several related gene expression clusters associated with poor outcome, worst overall survival and highest rates of resistant disease and obtained from the patients at the time of diagnosis or from previously untreated individuals is presented. Surprisingly, these gene clusters appear to be enriched for genes corresponding to proteins involved in transport across membranes (transporters, carriers and channels). Several ideas describing the possible relationship of membrane transport activity and leukemic cell biology, including the "Warburg effect," the specific role of chloride ion transport, direct "import" of metabolic energy through uptake of creatine phosphate, and modification of the bone marrow niche microenvironment are discussed.
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Affiliation(s)
- Alexandre Chigaev
- Department of Pathology and Cancer Center, University of New Mexico Health Sciences Center, University of New Mexico Albuquerque, NM, USA
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27
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Litan A, Langhans SA. Cancer as a channelopathy: ion channels and pumps in tumor development and progression. Front Cell Neurosci 2015; 9:86. [PMID: 25852478 PMCID: PMC4362317 DOI: 10.3389/fncel.2015.00086] [Citation(s) in RCA: 204] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Accepted: 02/23/2015] [Indexed: 12/23/2022] Open
Abstract
Increasing evidence suggests that ion channels and pumps not only regulate membrane potential, ion homeostasis, and electric signaling in excitable cells but also play important roles in cell proliferation, migration, apoptosis and differentiation. Consistent with a role in cell signaling, channel proteins and ion pumps can form macromolecular complexes with growth factors, and cell adhesion and other signaling molecules. And while cancer is still not being cataloged as a channelopathy, as the non-traditional roles of ion pumps and channels are being recognized, it is increasingly being suggested that ion channels and ion pumps contribute to cancer progression. Cancer cell migration requires the regulation of adhesion complexes between migrating cells and surrounding extracellular matrix (ECM) proteins. Cell movement along solid surfaces requires a sequence of cell protrusions and retractions that mainly depend on regulation of the actin cytoskeleton along with contribution of microtubules and molecular motor proteins such as mysoin. This process is triggered and modulated by a combination of environmental signals, which are sensed and integrated by membrane receptors, including integrins and cadherins. Membrane receptors transduce these signals into downstream signaling pathways, often involving the Rho GTPase protein family. These pathways regulate the cytoskeletal rearrangements necessary for proper timing of adhesion, contraction and detachment of cells in order to find their way through extracellular spaces. Migration and adhesion involve continuous modulation of cell motility, shape and volume, in which ion channels and pumps play major roles. Research on cancer cells suggests that certain ion channels may be involved in aberrant tumor growth and channel inhibitors often lead to growth arrest. This review will describe recent research into the role of ion pumps and ion channels in cell migration and adhesion, and how they may contribute to tumor development.
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Affiliation(s)
- Alisa Litan
- Nemours Center for Childhood Cancer Research, Alfred I. duPont Hospital for Children Wilmington, DE, USA
| | - Sigrid A Langhans
- Nemours Center for Childhood Cancer Research, Alfred I. duPont Hospital for Children Wilmington, DE, USA
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28
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P2C-Type ATPases and Their Regulation. Mol Neurobiol 2015; 53:1343-1354. [DOI: 10.1007/s12035-014-9076-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Accepted: 12/29/2014] [Indexed: 12/12/2022]
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29
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Rahman MM, Park BY. Na, K-ATPase β2 isoform (atp1b2) expressed in the retina of Xenopus. J Biomed Res 2014. [DOI: 10.12729/jbr.2014.15.4.194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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